Oil filter



A. H. FRANKE.

OIL FILTER.

APPLICATION HLED APR. 24. 1920- 1,402, 11 1 Patented Jan. 3, 1922.

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sewed filter which has two precipitating chambers and aseriesfof baffle plates in each precipitating chamber to aid in the precipitation of foreign particles in the oil... v p

v A further object is to construct an oil lilter having precipitating chambers in which 7 the circulation of the oil is induced byhcat applied around the precipitating chamber 7 and the direction of circulation controlled by baflle plates.

'In-the'fdrawings, Fig. '1 is a cross sectional'view of my filter; 7

Fig. 2 is atop plan view, taken on the In carryingout my invention, I make use of a reservoir 9, which is divided into com- "connected; Near the bottom of the steam' partments 10 and 1 1. The reservoir 9 is surrounded on four sides and the bottom by a steam jacket 12, to which a steam pipe 13 1s jacket is a pipe connection 14-, which is secured. to a riser-15. Thls pipe in turn is connected to a second pipe 16 by means of a short pipe 17 and the valves 18 and 19. These valves regulate the amount of condensation allowed to remaln in the steam chest or jacket.

In the chamber 10 is placed a rectangular 10 and 11 are separated from each other by the partition 24, which has a recess 25 cut in its upper end so that oil may pass from the compartment 10 into the compartment 11. In the compartment 11 is located a second rectangular casing 26, which is spaced apart spegification of Letters 2ate1it.

Application filed. April 24, 1920. Serial No. 376,234.

OIL FILTEB- Patented an. 3, 1922.

from the wall or partition 24: so as to form a passageway 27. Thiswill .cause the oil passing from the chamber .10 .to the chamber 11 to enter the last mentioned chamber near its bottom, and flow upward through and pastthe baffles 28. r

Above the ba-flles28 is a flange 29, having an upturned edge 30, this flange and upturned edge extending entirely around'the compartment 26, and over the upturned edge is placed a pan 31 having-the opening 32 which will permit the oil to pass therethrough and come in contact with the folded plate 33. This plate is folded so as to make plurality of V shaped passages through whichtheoil is circulated, and over the plate 33 is placed a second pan 34, which supports a similar folded plate 35, the folds of this plate extending at rightangles to the folds in plate 33, having the V-shaped passages extending at rightangles to the passages in the plate 33. Ata short distance above the plate 35 is a second flange 36, which supports a pan 37 having in its bottom an opening 38, and on this pan is supported a foldedplate 391 similar to the plates 33 and 35.

This folded plate in turn supports still another pan 40, and in turn another folded plate 41 is placed thereon, the folds in plate e1 extending at rightangles to the folds in the plate 39, said plate having its folds extending at rightangles to the folds in plate 39. Entering the chamber 11 and above the last mentionedfolded plate is a pipe 42, which is connected to the filtering chamber l3. This filtering chamber is provided with a downwardly extending wall e4; so as to form a passageway45 which directs the oil downward toward 'the'loottom of the charm her 43.

'ber 10. Within the receiving box 59 is a flange 62, on which the straining bag 63 rests. This straining bag is provldedwlth a wire frame 64% on its upper end, its lower end being provided with a loop 65; \Vithin the 7 bag is placed a spreader 66, this spreader being wider at the bottom than at the top,

I and is provided on two of its sides with the recesses 67. In order to secure the s reader 66 within the bag 63, the end having t e loop 65 is pulled upward through the central opening 68 and a wire passed through the loop. This wire will rest in the recesses 67 and prevent the end of the bag from dropping downward.

As will be seen in Fig. l, the baffles in the chamber are provided with openings .69, the purpose of these openings being to allow moisture to settle in the bottom of the chamber 10. The chambers 10 and 11, as well as the filtering chamber 43, are provided with drain cocks 70, these being for the purpose of cleaning the chambers. and drawing ofl' liquids therefrom.

The arrows shown in the refining chambers indicate the direction of the induced currents set up by the heating of the oil. These induced currents assistin thedepositing of foreign matter.

The operation of my invention is as follows:

The oil is first poured into the receiving chamber 59 and passes through the strainer This will remove the large particles of foreign matter contained in the oil. The oil then passes downward through the pipe 61 t into the chamber 10' where the moisture is precipitated, as well as some of the particles of foreign matter which have passed through the strainer. As this compartment fills, the oil will overflow the successive bafiles until the cut-out portion 25 in the wall 24 is reached. The oil will then pass down between the wall 24: and the frame 26 to the bottom of the chamber 11 and then rise again over the successive baffles and graduated plates till it reaches the level of the pipe 4:2. After flowing through the pipe 42 the oil passes down the passageway 45 formed in the filtering chamber and thence upwardly until it comes in contact with the filtering bags. It will then flow through the walls of these filtering bags and through the connection into the oil reservoir 51 where the pure oil islocated. During its travel in the chambers l0 and 11 additional or induced currents are set up, due to the peculiar arrangement of the bafiies and to the heating walls, the portion of the oil in contact with the wall adjacent the steam chamber becomin hotter than the oil removed therefrom, an conse quently rising. This will cause the oil to eddy around in the various chambers, even though no additional oil is being supplied to the filter.

The filtering bags located in the chamber 43 are merely for straining out suspended particles which have passed through the straining cloth 63, and which are too light to be precipitated by gravity.

Having fully described my invention, what I claim is 1. An oil'filter comprising adjacent refining compartments, a heating jacket surrounding said compartments on three sides, a passageway between said compartments, said passageway openin near the top of one compartment and near the bottom of the adcompartment on three sides, a plurality of truncated pyramid-shaped. baflles located in said compartment, said baffles being open at their center so as to provide an uninterrupted vertical passageway,- an oil strainer mounted above said compartment, a pipe attached to said strainer and opening downward through the openings formed in the baffles and terminating near the bottom of said compartment, a second compartment located adjacent the first compartment, said second compartment bein surrounded on three sides by the heating acket, a passage way connecting said compartments, said passageway opening near the top of the first mentioned compartment and terminatin near the bottom of the second mentioned compartment, a lurality of truncated pyramid-shaped ba es located in said second" compartment, said baffles being open so as to form an uninterrupted vertical passageway through said compartment, a plurality of folded baffles located. above the first mentioned baffles, said last mentioned baflies having their folds so arranged as to form passageways extending at rightangles to each other, plates for separating said folded baffies, a pipe attached near the top of the second mentioned compartment for draining oil therefrom and means for supplying heat to the heating jacket.

In testimony whereof, I'ha've signed my name to this specification.

- AUGUST H. FRANKIE. 

